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arXiv · 2111.14329

Low Frequency Quasi Periodic Oscillations and Shocks in Accretion onto Black Hole

Chandra B. Singh·Santanu Mondal·David Garofalo
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Abstract

Low-frequency quasi-periodic oscillations (LFQPOs) have been routinely observed in black hole X-ray binaries (BHXRBs). These LFQPOs can be explained by axisymmetric shock oscillation in accretion flow around a rotating black hole. We address the physical origin of Type-C LFQPOs in BHXRBs observed by the Rossi X-ray Timing Explorer satellite considering a minimum number of free parameters, namely, specific energy and specific angular momentum of the infalling matter for a given set of BH mass and spin parameter. We apply the solution for a large number of BH candidates to further strengthen the scenario of an anti-correlation between the QPO frequency and the location of the shock. Our study also confirms that Compton cooling can be sufficient to explain the observed QPOs.

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Chandra B. Singh, Santanu Mondal, David Garofalo. 2021-11-29. Low Frequency Quasi Periodic Oscillations and Shocks in Accretion onto Black Hole. https://doi.org/10.1093/mnras%2Fstab3471

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